Does the Aero Precision M4E1 PRO Stripped work with the Aero Precision M4E1 Upper 20" 5.56 Rifle?
Lower Receiver
Aero Precision M4E1 PRO Stripped
from $251.99
Upper Receiver
Aero Precision M4E1 Upper 20" 5.56 Rifle Barrel EM-15
from $435.99
Aero Precision lower and Aero Precision upper compatibility
Yes, they fit
The Aero Precision M4E1 PRO Stripped works with the Aero Precision M4E1 Upper 20" 5.56 Rifle Barrel. Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
Counted from real GunPartPicker builds: parts lists people put together while planning to buy.
Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.
Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.
How often builders pair the Aero Precision lower and Aero Precision upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Aero Precision M4E1 PRO Stripped and any upper
Aero Precision M4E1 PRO Stripped
- Of lower picks
- 0.1%
- Median paid
- $235
Aero Precision M4E1 Upper 20" 5.56 Rifle
Not in enough builds yet to report.
How we count ⌄
These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.
Frequently built with the Aero Precision lower and Aero Precision upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Trigger
Pistol Grip
Charging Handle
Stock & Brace
Handguard
Muzzle Device
Gas Block
Bolt Carrier Group
Aero Precision 5.56 BCG W/C158 Bolt
Fits both
Aero Precision M4E1 PRO vs Aero Precision M4E1 Upper 20": specs and prices
| Aero Precision M4E1 PRO | Aero Precision M4E1 Upper | |
|---|---|---|
| Best price | $299.99 at MidwayUSA | $435.99 at Dirty Bird Industries |
| Stores | 1 of 5 in stock | 0 of 1 in stock |
| Assembly | Stripped | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | Multi | 5.56 NATO |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Receiver Type | n/a | M4E1 |
| Length | n/a | 20 |
Both for $735.98 at today's best prices.
Today's best prices and 90 day price history
Every store we track for each part, cheapest in stock first. Prices are checked through the day.
Price history, last 90 days
- Aero Precision M4E1 PRO Stripped: lowest $234.70 on Jul 6, highest $289.99 on Jul 31 over the last 90 days.
- Aero Precision M4E1 Upper 20" 5.56 Rifle: lowest $435.99 on Jul 5, highest $435.99 on Jul 5 over the last 90 days.
Upper Receivers frequently paired with the Aero Precision M4E1 PRO Stripped
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision M4E1 PRO Stripped are listed.
Lower Receivers most paired with Aero Precision uppers
The Aero Precision M4E1 Upper 20" 5.56 Rifle is not in enough builds yet, so these are the most picked next to any Aero Precision upper. Only parts our rules say fit the Aero Precision M4E1 Upper 20" 5.56 Rifle are listed.
